v3.10.0.1
Condensed Consolidated Statements of Operations and Comprehensive Loss (Parenthetical) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2018
Sep. 30, 2017
Sep. 30, 2018
Sep. 30, 2017
Other comprehensive loss        
Foreign currency translation adjustments, tax $ 0 $ 0 $ 0 $ 0